/* ---------- Base ---------- */

:root {
  --ink: #111827;
  --muted: #667085;
  --soft-muted: #8b95a7;
  --line: #e7ebf2;
  --accent: #2f65f5;
  --accent-dark: #2454d8;
  --tint: #f3f7ff;
  --white: #ffffff;
  --page-width: 1100px;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.03);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family:
    Inter,
    ui-sans-serif,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

svg {
  display: block;
}

.section {
  padding: 96px 24px;
}

.content {
  width: min(100%, var(--page-width));
  margin: 0 auto;
}

.content.narrow {
  max-width: 760px;
  margin-left: max(24px, calc((100vw - var(--page-width)) / 2));
}

.section-label,
.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section h2 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.07;
  letter-spacing: -0.035em;
}

.section-intro {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.section-intro.compact {
  max-width: 680px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 0;
  border-radius: 11px;
  padding: 0 21px;
  cursor: pointer;
  font-weight: 700;
  text-decoration: none;
  transition:
    transform 160ms ease,
    background 160ms ease,
    box-shadow 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(47, 101, 245, 0.28);
  outline-offset: 3px;
}

.button.primary {
  color: var(--white);
  background: var(--accent);
  box-shadow: 0 8px 22px rgba(47, 101, 245, 0.18);
}

.button.primary:hover {
  background: var(--accent-dark);
}

/* ---------- Header ---------- */

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 50%;
  display: flex;
  width: min(calc(100% - 48px), 1120px);
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
  transform: translateX(-50%);
}

.brand {
  font-size: 19px;
  font-weight: 760;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.location {
  color: var(--muted);
  font-size: 13px;
}

/* ---------- Hero ---------- */

.hero {
  min-height: 560px;
  display: grid;
  place-items: center;
  border-bottom: 1px solid var(--line);
  padding-top: 134px;
}

.hero-inner {
  width: min(100%, 820px);
  margin: 0 auto;
  text-align: center;
}

.hero .eyebrow {
  margin-bottom: 26px;
  text-transform: none;
  letter-spacing: 0.01em;
}

.hero h1 {
  margin: 0;
  font-size: clamp(50px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.hero-copy {
  max-width: 650px;
  margin: 30px auto 28px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.55;
}

.hero-note {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 15px;
}

/* ---------- Problem ---------- */

.problem {
  padding-top: 108px;
}

.challenge-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 42px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
}

.challenge {
  min-height: 86px;
  display: flex;
  align-items: center;
  padding: 20px;
  border-right: 1px solid var(--line);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.35;
}

.challenge:last-child {
  border-right: 0;
}

.mission-card {
  margin-top: 92px;
  border-radius: 20px;
  padding: clamp(38px, 6vw, 64px);
  background: var(--tint);
}

.mission-card h2 {
  max-width: 670px;
  font-size: clamp(36px, 4.5vw, 56px);
}

.mission-card p {
  max-width: 660px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

/* ---------- Learning ---------- */

.learning {
  border-bottom: 1px solid var(--line);
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 38px;
}

.learning-card {
  min-height: 156px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.icon {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: var(--accent);
  background: var(--tint);
}

.icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.learning-card h3 {
  margin: 18px 0 8px;
  font-size: 17px;
  letter-spacing: -0.015em;
}

.learning-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.founder-note {
  max-width: 790px;
  margin: 88px auto 0;
  border-left: 3px solid var(--accent);
  padding: 18px 0 18px 28px;
}

.founder-note .section-label {
  margin-bottom: 20px;
}

.founder-note p:not(.section-label) {
  margin: 0 0 22px;
  color: #344054;
  font-size: 16px;
  line-height: 1.65;
}

.founder-note p:last-child {
  margin-bottom: 0;
}

/* ---------- CTA ---------- */

.final-cta {
  padding-top: 82px;
  padding-bottom: 82px;
  background: var(--tint);
}

.cta-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.final-cta h2 {
  max-width: 650px;
  margin: 0 auto;
}

.final-cta p {
  max-width: 560px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.cta-actions {
  display: flex;
  justify-content: center;
  margin-top: 34px;
}

.privacy-note {
  font-size: 12px !important;
  color: var(--soft-muted) !important;
}

/* ---------- Footer ---------- */

.site-footer {
  display: flex;
  width: min(calc(100% - 48px), var(--page-width));
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
  padding: 26px 0 34px;
  color: var(--muted);
  font-size: 13px;
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--ink);
}

/* ---------- Helpers ---------- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .section {
    padding: 78px 22px;
  }

  .content.narrow {
    width: min(100%, var(--page-width));
    margin: 0 auto;
  }

  .challenge-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .challenge {
    border-bottom: 1px solid var(--line);
  }

  .challenge:nth-child(2n) {
    border-right: 0;
  }

  .challenge:last-child {
    grid-column: 1 / -1;
    border-bottom: 0;
  }
}

@media (max-width: 680px) {
  .site-header {
    width: calc(100% - 36px);
    padding-top: 22px;
  }

  .location {
    font-size: 11px;
  }

  .hero {
    min-height: 620px;
    padding-top: 120px;
  }

  .hero h1 {
    font-size: clamp(48px, 15vw, 68px);
  }

  .hero-copy {
    margin-top: 24px;
    font-size: 18px;
  }

  .hero-note {
    font-size: 13px;
    line-height: 1.5;
  }

  .section h2 {
    font-size: 36px;
  }

  .section-intro {
    font-size: 16px;
  }

  .challenge-grid {
    grid-template-columns: 1fr;
  }

  .challenge,
  .challenge:nth-child(2n) {
    min-height: 68px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .challenge:last-child {
    grid-column: auto;
  }

  .mission-card {
    margin-top: 64px;
    border-radius: 16px;
    padding: 34px 24px;
  }

  .learning-grid {
    grid-template-columns: 1fr;
  }

  .founder-note {
    margin-top: 64px;
    padding-left: 22px;
  }

  .cta-actions .button {
  width: auto;
  }

  .site-footer {
    width: calc(100% - 36px);
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }
}